supply lines?

Am installing tub and shower in old house. Ran copper to 2d floor, terminated with shutoffs. Can I use flexible compression tubes for water supply from shutoffs to faucet? Not the plastic but the reinforced kind, like a toilet feed.
thanks in advance.

To the lavatory faucet...yes. Tub no. No kind of compression fitting or flex line can be used in an inaccessible location inside the wall.

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Thanks for the "headsup". Even though the shutoffs will be accessible from the back of the wall, The connection to the faucets won't be. Soooooo I will go with threaded connections. Appreciate your advice.